Personal and Task-Related Moderators of Leader-Member Exchange Among Software Developers

Although earlier studies have shown significant positive relationships between leader-member exchange (LMX) and its outcomes, they have also noted that the effect sizes of these relationships have been modest and heterogeneous. Addressing numerous calls for future studies that examine potential moderators of the LMX-job performance and LMX-job satisfaction relationships and utilizing a multidomain perspective, this study tests the moderating roles of personal (i.e., locus of control) and task-related (i.e., task autonomy) factors on these relationships. The results of an empirical study with a sample of 287 software developers and 164 supervisors participating at a large international information technology exhibition indicated that the LMX-job performance relationship was stronger when employees' locus of control was internal as opposed to when it was external. In addition, it was stronger when task autonomy was high as opposed to when it was low. Moreover, the results suggested that the LMX-job satisfaction relationship was stronger when task autonomy was high as opposed to when it was low. Finally, contrary to theoretical expectations, employees' locus of control did not moderate the LMX-job satisfaction relationship. © 2008 American Psychological Association.